| 正 | zhēng | first month of the lunar year |
| 正 | zhèng | just (right); main; upright; straight; correct; positive; greater than zero; principle |
| 则 | zé | conjunction used to express contrast with a previous sentence or clause; standard; norm; rule; to imitate; to follow; then; principle; classifier for written items (such as an official statement) |
| 表 | biǎo | wrist or pocket watch; exterior surface; family relationship via females; to show (one's opinion); a model; a table (listing information); a form; a meter (measuring sth) |
| 达 | dá | to attain; to reach; to amount to; to communicate; eminent; surname Da |
| 式 | shì | type; form; pattern; style |
| 正则 | zhèng zé | regular (figure in geometry) |
| 表达式 | biǎo dá shì | expression (math.); displayed formula |
